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- From: Arend van Spriel <[email protected]>
- Date: Wed, 18 Mar 2015 13:25:21 +0100
- Subject: [PATCH] brcmfmac: avoid runtime-pm for sdio host controller
- Several host controllers supporting runtime-pm are causing issues
- with our sdio wireless cards because they disable the sdio interrupt
- upon going into runtime suspend. This patch avoids that by doing
- a pm_runtime_forbid() call during the probe. Tested with Sony Vaio
- Duo 13 which uses sdhci-acpi host controller.
- Reviewed-by: Hante Meuleman <[email protected]>
- Reviewed-by: Franky (Zhenhui) Lin <[email protected]>
- Reviewed-by: Pieter-Paul Giesberts <[email protected]>
- Signed-off-by: Arend van Spriel <[email protected]>
- Signed-off-by: Kalle Valo <[email protected]>
- ---
- --- a/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c
- +++ b/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c
- @@ -29,6 +29,7 @@
- #include <linux/mmc/host.h>
- #include <linux/platform_device.h>
- #include <linux/platform_data/brcmfmac-sdio.h>
- +#include <linux/pm_runtime.h>
- #include <linux/suspend.h>
- #include <linux/errno.h>
- #include <linux/module.h>
- @@ -1006,6 +1007,7 @@ static int brcmf_sdiod_remove(struct brc
- sg_free_table(&sdiodev->sgtable);
- sdiodev->sbwad = 0;
-
- + pm_runtime_allow(sdiodev->func[1]->card->host->parent);
- return 0;
- }
-
- @@ -1074,7 +1076,7 @@ static int brcmf_sdiod_probe(struct brcm
- ret = -ENODEV;
- goto out;
- }
- -
- + pm_runtime_forbid(host->parent);
- out:
- if (ret)
- brcmf_sdiod_remove(sdiodev);
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